What's the JDO equivalent of the JPA @PersistenceContext annotation

In JPA, you can inject an EntityManager with the @PersistenceContext annotation:

@PersistenceContext
private EntityManager 开发者_StackOverflow社区entityManager;

What is the JDO equivalent of this for a PersistenceManager?

@????
private PersistenceManager persistenceManager;

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There is no standard equivalent AFAIK. But you could use Guice or Spring JDO Support.